3 years ago

Find the value of x in the triangle shown below.

Mathematics

1 answer:

FrozenT [24]3 years ago

5 0

I think it’s 55 lollll

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If y varies directly as the x^2 and y = 200 when x = 5, what is the value of y when x = -3?

gayaneshka [121]

As the variation is direct we have:
$y = kx ^ 2
$
We must find the value of k.
For this, we use the following data:
y = 200 when x = 5
Substituting values we have:
$200 = k5 ^ 2
$
Clearing k:
$k = 200/5 ^ 2

k = 200/25

k = 8$
Then, the function is:
$y = 8x ^ 2
$
We evaluate the function for x = -3
$y = 8 (-3) ^ 2

y = 8 (9)

y = 72$
Answer:
the value of y when x = -3 is:
c.
72

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3 years ago

What is 14c12? A. 78 B. 91 C. 105 D. 120

Delicious77 [7]

9514 1404 393

Answer:

B. 91

Step-by-step explanation:

14C12 = 14!/(12!(14-12)!) = 14·13/(2·1) = 7·13 = 91

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3 years ago

Which store has the larger median value?

Elan Coil [88]

The store with the larger numbers

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2 years ago

Find the area of the region that lies inside both curves. r = 3+2cose, r = 3-2cose

Kitty [74]

https://socratic.org/questions/how-do-you-find-the-area-of-the-region-bounded-by-the-polar-curves-r-3-2cos-thet#112305

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2 years ago

Find the PERCENT of change. 20 dogs to 5 dogs

aliya0001 [1]

Answer:

75%

Step-by-step explanation:

20-5=15 - change in numbers

15/20×100%= 75%

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